Device for installing wall and ceiling board



Dec. 6, 1949 F. J. ARNOULD DEVICE FOR INSTALLING WALL AND CEILING BOARDFiled Aug. s, 1947 2 Sheets-Sheet l Q Q @n n uw N? n mn hw mm, n n wwwwww f NN E S S E S S E Q E .W\ NN .WN w

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Inventar M 0 n f A J. .m, .m fr4 PatentedDec. 6, 1949v UNITED sTATEsPATENT OFFICE DEVICE FOR INSTALLING WALL AND CEILING BOARD Firmin J.Arnould, Los Altos, Calif. l Application August 8, 1947, Serial No.767,431

2 claims. l

This invention relates to new and useful im-l provements and structuralrefinements in devices for installing wall and ceiling board, morespeciflcally, plaster board, insulating sheets or panels, or the like,and the principal object of the invention is to provide a device of thecharacter herein described, which may be conveniently and effectivelyemployed for supporting the board while it ls being installed, so thatthe difficult and tedious nature of such installation may. besubstantially simplified.

A further object of the invention is to provide a device for installingwall and ceiling board which may be quickly and easily adjusted inaccordance with various working conditions.

Another object of the invention is to provide a device for installingwall and ceiling board which is simple in construction, convenient inuse, and which may be readily disassembled so as to facilitateportability from one site to another.

An additional object of the invention is to provide a device forinstalling wall and ceiling board which will readily lend itself toeconomical manufacture and which is otherwise well adapted for thepurpose for which it is intended.

With the above more important objects in view and such other objects asmay become apparent as this specification proceeds, the inventionconsists essentially of the construction and arrangement of parts asshown in the accompanying drawings in which:

Figure 1 is a side elevation of the invention showing the boardreceiving platform thereof in the lowered position.

Figure 2 is an elevational view, taken substantially in the direction ofthe arrow 2 in Figure 1.

Figure 3 is a side elevational view, substantially similar to that shownin Figure 1, but illustrating the board receiving platform in anupraised position.

Figure 4 is a cross sectional View, taken substantially in the plane ofthe line 4-4 in Figure 3, and;

Figure 5 is a cross sectional view, taken substantially in the plane ofthe line 5--5 in Figure 3.

Like characters of reference are used to designate like parts in thespecification and throughout the several views.

Referring now to the accompanying drawings in detail, the inventionconsists of a device for installing wall and ceiling board, the samebeing designated generally by the reference character I0 and embodyingin its construction an upright framework I I consisting of a pluralityof upwardly convergent legs I2.

Swivel casters I3 are provided at the lower end of the legs I2, whilethe upper end portions of the legs form what may be referred to as forksI 4 which are separably connected by suitable pins or bolts I5 tosuitable downturned ears or lugs provided on a horizontally disposedplate I6.

It will be noted that this plate is provided on the underside thereofwith a boss Il and that it is formed .with a suitable bore or apertureso as to slidably accommodate a vertically extending shaft I8, as willbe clearly apparent.

Rotatable rods or shafts I9 and 20 are each journaled in a pair of thelegs I2, more specifically, intermediate the length of the legs, and aseries of tie rods 2|, arranged in a substantially X-shaped formation,are connected to the shafts I9, 20 as ywill be presently described.

The outer extremities of the rods 2| are provided with suitable sleevesor collars 22 which are rotatably positioned on'l the shafts I9, 20,while the inner extremities of the rods 2| are secured to a pair ofcomplementary half sections of a bearing block 23.

The half sections of the bearing block are separably connected togetheras indicated at 24, and

the bearing block provides what may be referred to as a, slide bearingfor the lower end portion of the aforementioned shaft I8.

A board receiving plate or platform 25, formed integrally on theunderside thereof with a reinforcement 26 and with a bored boss 21, isremovably and rotatably positioned on the upper end portion of the shaftI8, the purpose of this arrangement being hereinafter more fullyexplained.

The shaft I8, together with the platform 25, may be raised and loweredas desired, this being accomplished by means of an actuating lever 28which is pivoted intermediate of its length as at 29 to one end of alink 30. The remaining end portion of the latter, in turn, is pivotallymounted on the aforementioned shaft 20, while one end of the lever 28 ispivoted as at 3I to a lug 32 formed on a collar 33 which, in turn, isrigidly secured medially the length of the shaft I8.

Accordingly, when the invention is placed in use, a plaster board, orthe like, may be positioned upon the platform 25, whereupon by simplydepressing the lever 28 in the direction of the arrow 34, the platform,together with the plaster board, may be raised and upheld in theupraised position as indicated in Figure 3, while the plaster board isbeing secured to the ceiling.

Means are also provided for supporting the plaster board during theinstallation thereof on a wall, said means comprising a pair of guiderods 33 conflgurated substantially as shown and secured to two of theaforementioned legs I2.

It will be noted that the guide rods 35 are disposed vertically in aspaced parallel relation,

and a board receiving carrier, assuming the form of a substantiallyL-shaped channel 33. is provided with a pair oi' upstanding brackets 31which. in turn, are connected together by a transversely extending strap38 forming a pair of guide sleeves 33. These sleeves are slidablypositioned on the guide rods 35 and by virtue of this arrangement, thecarrier channel 38 may be lowered and raised as indicated by the arrow40.

The raising and lowering of the carrier channel 33 is effected by ameans of a further actuating lever 4i secured to the aforementionedshaft I3, the latter also carrying a crank 42 which is pivotallyconnected as at 43 to a link 44. This link ls, in turn, pivoted as at 45to a pair of lugs or 'brackets 46 secured to the aforementioned strap33.

Accordingly, a plaster board may be positioned upon the carrier channel33, whereupon by simply actuating the lever 4i in the direction of thearrow 4l, the carrier channel, together with the board, may be raised asdesired, as as to elevate the board to the appropriate position andthereby facilitates its installation on the wall.

It should be also explained that when the board is being installed onthe ceiling, the rotatabllity of the platform 25 with respect to theshaft I8 will facilitate appropriate adjustment whereby the board may belifted upwardly and at the same time, rotated as required, so as to htproperly in its predetermined position on the ceiling. g

Needless to say. the platform 25 as well as the carrier channel 36 willbe returned to their lower position by virtue of gravity, as soon as theapplication of force upon the respective levers 28 and 4i is relieved.

Finally, it should be explained that the provision of the casters i3will. of course, facilitate the maneuvering of the entire device in theroom, or the like, where the installation of the board is beingundertaken, and after the installation is completed, the entire devicemay bespeedily and easily disassembled by simply removing the platform25 from the shaft i3 and similarly withdrawing the shaft from theframework ll, as

will be clearly apparent. Furthermore, the plate 4 it may bedisconnected from the legs i2 by with drawing the pins or screws Il, andthe legs may be separated into pairs by disconnecting the fasteningelements 24 oi the bearing block 23.

It is believed that the advantages and use of the invention will beclearly apparent from the foregoing disclosure and accordingly, furtherdescription thereof at this point is deemed unnecessary.

While in the foregoing there has been shown and described'the preferredembodiment of this invention it is to be understood that minor changesin the detalls of construction. combination and arrangement of parts maybe resorted to without departing from the spirit and scope oftheinvention as claimed.

What I claim as my invention is:

i. A device for installing wall and ceiling board, comprising incombination, an upright framework comprising a plurality of upwardlyconvergent legs, a horizontal plate securing the upper ends of said legstogether, casters mounted at the lower ends of said legs, a verticalshaft cxtending slidably through said plate. a series of tie rodssecured intermediate the length of said legs and providing a slidebearing for the lower end portion of said shaft, a board receivingplatform rotatably mounted at the upper end of said shaft, a linkpivoted to said framework, an actuatingv lever pivoted intermediate itslength to said link, one end of said lever being operatively connectedto said shaft, a pair of spaced parallel guide rods secured to two ofsaid legs, a board receiving carrier slidable on said rods, and afurther lever pivoted to said framework and operatively connected tosaid carrier whereby the raising and lowering of said carrier may beeffected.

2. The device as defined in claim 1, in which said carrier comprises anL-shaped channel and a pair of guide brackets secured thereto, saidbrackets being slidable on said rods.

FIRMIN J. ARNOULD.

REFERENCES CITED The following references are of record in the le ofthis patent:

UNITED STATES PATENTS Number

